Laparoscopy-assisted subtotal gastrectomy under thoracic epidural-general anesthesia leading to the effects on postoperative micturition

Background: Recently, the laparoscopic surgical technique has been widely applied to major surgery as it can minimize surgical incision, reduce blood loss, and shorten hospital stay. In this study, we evaluated the effectiveness of the laparoscopic surgery on postoperative micturitional function in comparison to open surgery. Method: Sixty patients undergoing subtotal gastrectomy were assigned to either laparoscopic (L group, n = 30) or open surgery (O group, n = 30) groups. The combined thoracic epidural-general anesthesia was performed on all patients, and epidural patient-controlled analgesia (PCA) using ropivacaine and sufentanil was maintained for two days following surgery. After surgery, visual analog pain score (VAS), levels of sensory and motor block, observer's assessment of alertness/sedation score (OAA/S), time to first flatus, ambulation and oral intake, and micturition function were assessed. Results: The L group showed much earlier ambulation, flatus and oral intake than the O group. Although the scores of VAS and OAA/S were not significantly different between the two groups, the micturition problem scores of the L group were lower than that of the O group (P < 0.05). All patients of the L group had no difficulty in self-voiding, whereas four patients in the O group required urinary catheterization on the first postoperative day (POD1). Conclusions: Patients who underwent laparoscopic subtotal gastrectomy had a low incidence of micturitional problem and showed early recovery. Therefore, urinary catheterization on POD1 may not be a routine procedure for those who undergo laparoscopic subtotal gastrectomy under combined thoracic epidural-general anesthesia.